# TOTP Code Generator

> Generate time-based one-time passwords from a Base32 secret to test 2FA setups.

To generate a TOTP code, paste the Base32 secret shown during two-factor setup. The code is derived from the secret and the current time using HMAC-SHA1, exactly as Google Authenticator does, and refreshes every 30 seconds.

**URL:** https://convertto.tech/t/totp-generator
**Category:** Hash & Crypto Tools (https://convertto.tech/c/crypto-tools)
**Privacy:** Runs entirely in the browser; no upload
**Cost:** Free, no sign-up
**Last updated:** 2026-08-01

## Key facts

- **Privacy:** Runs entirely in your browser — nothing is uploaded
- **Cost:** Free, unlimited, no sign-up

## How to use

1. Enter or paste your base32 secret.
2. Choose the digits.
3. Set the period (seconds).
4. The result appears immediately — copy or download it.

## FAQ

### Should I paste a real 2FA secret here?

Only for testing your own setup. The computation is local and nothing is transmitted, but a 2FA secret is equivalent to a second password — treat it with the same care and prefer a throwaway test secret.

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